I think that when Lilli gets sick, that will reveal that they're honestly kind of unstable.
Quote:
Lilli raised an eyebrow. "Do you believe them, or do you believe me?" They suddenly bent over as they erupted into a huge fit of hacking and coughing. Lilli had to wheeze to catch their breath. There was pain in their eyes as they drew back up. But then a wry smile drew across their face. "'Cause I've been sick a million times, and I've never let that stop me."
Ki used an arm to hold Lilli down. There was concern in their eyes as they looked down at Lilli. "Look, you need to rest if you want your body to get better. This is for your own sake."
"Yeah, so what?" There was distrust in Lilli's eyes as they glowered up at Ki. "That's what you're saying, but that doesn't necessarily mean it's true. I can choose to believe what I want to believe, and I don't have to believe what you say."
Lilli's eyes widened as they clutched the sheets, their voice wavering as they stared out into space. "I can't give up on something like this. I can't get a little disease like this get up in my way. I'm not... weak like that."